Page 54 - Sace Emax 2 Catalogue

3/30 SACE EMA X 2 LOW VOLTAGE AIR CIRCUIT-BRE AKERS

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Technical characteristics for protection

trip units

Measurement functions

Record of values: of the parameter for each interval with time-stamping Parameters Window Intervals Ekip Touch Ekip Hi-Touch Ekip G Touch Ekip G Hi-Touch
Current: minimum and maximum [A] I Min, I Max Fixed synchronizable by Duration: 5…120min
remote Number of intervals: 24
Phase-phase voltage: minimum and maximum [V] U Min, U max
Active power: average and maximum [kW] P Avg, P Max
Reactive power: average and maximum [kVAR] Q Avg, Q Max
Apparent power: average and maximum [KVA] S Avg, S Max

Data logger: record of high sampling rate parameters Parameters
Currents [A] L1, L2, L3, Ne, Ig
Voltages [V] U12, U23, U31
Sampling rate [Hz] 1200-2400-4800-9600
Maximum recording duration [s] 13.6
Recording stop delay [s] 0-10s
Number of registers [no] 2 independent

Information on trip and opening data: after a fault without auxiliary supply Parameters
Type of protection tripped eg. L, S, I, G, UV, OV
Fault values per phase [A/V/Hz W/var] eg. I1, I2, I3, neutral for S protection
V12, V23, V32 for UV protection
Time-stamping Date, time and progressive number

Maintenance indicators Parameters
Information on last 30 trips Type of protection, fault values and time-stamping
Information on last 200 events Type of event, time-stamping
Number of mechanical operations (1) [no] Can be associated to alarm
Total number of trips [no]
Total operating time [h]
Wear of contacts [%] Prealarm >80%
Alarm = 100%
Date of maintenance operations performed Last
Indication of maintenance operation needed
Circuit-breaker I.D. Type of circuit breaker, assigned device name, serial number

Self-diagnosis Parameters
Check of continuity of internal connections Alarm due to disconnection: rating plug, sensors, trip coil Note: Opening of circuit
Failure of circuit breaker to open (ANSI 50BF) Alarm following non-tripping of protection functions breaker can be set in the
event of alarm
Temperature (OT) Prealarm and alarm for abnormal temperature
(1) with auxiliary supply present
Note: In case of Black trip units, 0.4% In is the lowest current value detected by Emax 2